Ignite spatial index behavior

["olg.kpln@gmail.com" <ol...@gmail.com>]

Is there an optimization about spatial index behavior?
I'm running a POC, trying to show Ignite performance when searching for a
polygon (from a polygon table) which intersects with a certain point
(randomly generated).
I've noticed that when the 'hit-ratio' is low (no intersecting polygon) the
query return faster.




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Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Ignite spatial index behavior

[Pavel Vinokurov <vi...@gmail.com>]

Hi,

Ignite provides envelope intersection, so it searches intersection of
bounding box for a polygon and a certain point.
Low 'hit-ratio' should not significantly affect to query performance.
Could you please share a small piece of code or a project.

2018-04-15 10:42 GMT+03:00 olg.kpln@gmail.com <ol...@gmail.com>:

> Is there an optimization about spatial index behavior?
> I'm running a POC, trying to show Ignite performance when searching for a
> polygon (from a polygon table) which intersects with a certain point
> (randomly generated).
> I've noticed that when the 'hit-ratio' is low (no intersecting polygon) the
> query return faster.
>
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>



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Regards

Pavel Vinokurov